iStockphoto(DENVER) -- Colorado’s recently approved gun control laws, passed in response to the Aurora, Colo., and Newtown, Conn., massacres, are being challenged by a delegation of sheriffs who say the laws are unconstitutional.

In March, Colorado Gov. John Hickenlooper signed off on some of the toughest gun control legislation in the country, including a law mandating universal background checks for the purchase of firearms and another restricting the size of high-capacity magazines.

A lawsuit was filed on Friday in Colorado’s U.S. District Court on behalf of 54 of the state’s sheriffs in an effort to block the...

Polka Dot/Thinkstock(SMYRNA, Tenn.) -- Bob Robertson is 77 years old and a faithful golfer in more ways than one.

The Tennessean plays golf four days a week and says he asked God to let him score a hole-in-one for a good cause. Robertson not only got a hole-in-one last month, he shot a hole-in-one three times in 29 days on the same hole.

He’s an Air Force veteran who had a stroke six years ago, which left him blind in one eye.

Robertson says the improbable golf shot wasn’t by chance. He...

Photo by William Thomas Cain/Getty Images(NEW YORK) -- As the countdown ticks on to Saturday night's record Powerball drawing, the jackpot has swollen to over $600 million, largely due to California's participation in the game, lottery officials said.

In the one month since California joined the list of 42 states, the District of Columbia and the U.S. Virgin Islands in playing, Powerball fever has swept across the Golden State.

California, the country's most populous state, has skyrocketed to the top three states in terms of ticket sales, alongside Florida and New York, according...

ABCSunday night's Billboard Music Awards, airing live from the MGM Grand in Las Vegas on ABC, will feature quite a bit of country flavor throughout the night.  Kacey Musgraves and The Band Perry will join big-time nominee Taylor Swift on the performers lineup.

Taylor joins fun. and Maroon 5 as the lead nominees for the 2013 Billboard Music Awards, with 11 nods apiece.

All three of those artists are up for the Top Artist prize too, along with One Direction and Rihanna.  Taylor is also up for Top Female Artist, and for Top Billboard 200...

Capitol NashvilleSome of music's biggest names will be spotlighted Saturday night on a special edition of ABC's 20/20. 

Called Rock 'n Royalty: Billboard's All-Stars, the show will be anchored by Barbara Walters, and feature the best and most memorable moments from ABC interviews conducted throughout the years with a variety of pop and country superstars.

Among the moments featured on show are Katie Couric's 2012 interview with Taylor Swift to announce her RED tour, and a new interview with Lady Antebellum, conducted by ABC's Juju Chang.

Interviews with Madonna, Cher, Justin Timberlake, Mariah Carey and...

Robin Williams Via TwitterA few weeks back, Kelly Clarkson tweeted a photo of herself with Robin Williams, posing on the set of a CBS comedy pilot called The Crazy Ones.  Turns out she made a cameo as herself in the pilot, and now that CBS has now picked up the show for the fall, we'll be able see her.  A sneak preview, however, is available online now.

The Crazy Ones is set in Chicago, and is about a father and daughter, played by Williams and Sarah Michelle Gellar, who both...